Mastech M9912 OPERATOR’S INSTRUCTION MANUAL

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screws completely before using the meter to avoid electrical shock hazard.

If “ ” appears on display, it indicates that the battery should be replaced.

Use the following procedure to replacing the battery:

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1. Disconnect test leads from any live source, turn the rotary switch to OFF,

and remove the test leads from the input terminals.

2. The battery cover is secured to the bottom case by a screw. Using a

screwdriver, remove the screw from the battery cover and remove the

battery cover.

3. Remove battery and replace with a new equivalent 9 volt battery.

4. Replace the battery cover and reinstall the screw.

ACCESSORIES

• Operator’s instruction manual

• Set of test leads

• Gift box

• 9 volt battery. NEDA 1604 6F22 006P type

CAUTION:

Using this appliance in an environment with a strong radiated radio-frequency

electromagnetic field (approximately 3V/m),may influence its measuring accuracy.

The accuracy can be reduced to  (12% of reading + 6 digits).

The measuring result can be strongly deviating from the actual value.

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Mastech M9912 AC/DC Clamp Meter